Grow your line to reach the goal in Streamline. The hand-crafted puzzles contain a variety of unique interesting mechanics, and range from easy to fiendishly difficult. These should keep you busy for a while, but if you manage to finish them all, there is also an infinite mode with procedurally-generated puzzles.

Rated 4th for fun and 8th overall in Ludum Dare 34.

Need more? Play the PuzzleScript demake.

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0.0.7 (2016-03-31)

  • Re-order level groups (progress should be kept sensibly)

0.0.6 (2016-03-11)

  • Ported to HTML5 (link above)
  • Better undo UI
  • Improve anti-aliasing on native platforms
  • Setting for sounds
  • Bug fixes

0.0.5 (2016-01-15)

  • Total of 56 levels, segmented into groups
  • Many new mechanics waiting to be discovered
  • Progress is now saved so you can return where you were
  • Some new helpful graphics
  • Tap on blocks for helpful hints
  • Many other small tweaks and bug fixes


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Hey! I just bought your game Jetstream a long while ago and I'm really enjoying it :)!

Fun game. Minor bug, though: at least on Chrome, the cursor keys scroll the page in addition to controlling the game.

Sorry about the bug. Chrome keeps updating and breaking the old tested behaviour and we don't have the time to keep updating this. Try play in full screen :) 

Did you hand craft the levels or is it randomly generated?

The initial groups are all handcrafted. The infinite levels are generated procedurally.

Great game. Puzzles are challenging and fun.

Sound FX are on point. Very nice minimalistic animations.

It's not getting boring because new levels introduce new features.

i love the sound effects on this they are so satisfying

Very cool game! Took me a while to finish all the levels (beside the infinite ones ofc)!

Memories broken, the truth goes unspoken

I've even forgotten my name

I don't know the season or what is the reason

I'm standing here holding my blade

A desolate place (place)

Without any trace (trace)

It's only the cold wind I feel

It's me that I spite as I stand up and fight

The only thing I know for real

There will be blood (blood) shed (shed)

The man in the mirror nods his head

The only one (one) left (left)

Will ride upon the dragon's back

Because the mountains don't give back what they take

Oh no, there will be blood (blood) shed (shed)

It's the only thing I've ever known

Losing my identity

Wondering, "Have I gone insane?"

To find the truth in front of me I must climb this mountain range

Looking downward from this deadly height and never realizing why I fight


Super clean minimalistic game

hello, I tried to click to continue but it won't let me. I wanted to play this on my laptop. 

It should work just fine on a laptop with a recently new browser. What browser are you using?


I was using chrome and then I refreshed it and it works! thank you!


Very interesting game. The puzzle-solving process was enjoyable.


i like the sound effects and animations!


good game


This feels perfect for cool math games

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An absolute perl with great game and level design altogether ! Very chilling but sometimes challenging :D


very cool game! i dont like how everytime i press the down arrow my WHOLE screen moves down. but i LOVE this game s

have you tried fullscreen


Mobile game WHEN


We're working on an improved version of the game, called Jetstream. Hopefully coming soon to mobile:

oh, Im glad to hear you still intent to make a mobile version! The game looks so cute.

(1 edit) (+2)

this game is easy and calm i love it <3


I like the game, it's very calming and easy to play.

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This game is very chill. Helps me when I'm frustrated, the concept is easy to understand. The game isn't easy is acttualy a challenge (I probally SUCK to be honest) so after I played for more then 25 min now I'm not bored .

Good game.


Incredibly well polished




This game is amazing! its very enjoyable and I love the sounds

(1 edit) (+3)

Great game! really helps me stay calm in times like this. I do, however, have a few suggestions. maybe you could optimize the infinite levels mode playing experience by having settings for which puzzle parts the player wants. for example, I prefer not to play levels with the two "players" (I don't know how else to put it since this game is so abstract). maybe one could disable that for playing computer-generated levels. another thing I would like to see in the game is a way for you to make your own levels and share them with other players. obviously the "sharing with other players" part wouldn't be easy to implement, so maybe each user generated level could come with a shareable seed. I really like giving feedback on indie games, because I feel a closer connection to the people/person actually behind the programming. I can't exactly just tweet at nintendo for things I want in their games and expect it to actually happen.

Edit: sorry if I got a bit off topic at the end of the comment


Really happy to hear Streamline is calming! <3

Those sound like some good suggestions! However all development effort on this project is currently being directed to Jetstream (, our spiritual successor to Streamline. Besides looking better, having much better audio and other polish changes, Jetstream has quite a few new mechanics, while removing the clunky two-player mode you're referring to (it was a nice experiment, but I agree - it's not as good). We're current working on a procedural generation mode for Jetstream and will be putting out an update with that, as well as bringing it to mobile platforms.

I'd love to also have some sort of level editor, but alas that tends to be an expensive feature to do. We have an internal editor, but it would be a lot of work to get that remotely acceptable for public consumption. Jetstream's procedural levels will be structured a bit differently, so it'll be a bit easier to share them in some ways - think more like groups of daily levels where everyone in the world gets the same set. We're working hard to get that done soon :)

Thanks for playing and your feedback!


It's a good concept. I would love to see a set of more complex levels that really flush out the mechanics, but otherwise well done!

Oh and you should know there is a "bug" with the web version where pushing up/down moves the scroll bar, don't know if you can fix that.

Thanks! We've been working on Jetstream ( as a follow up with the same core mechanics but fleshed out a bit more. Maybe that scratches your itch?

I've fixed the scrolling bug before, but unfortunately the ever-changing web standards means that it constantly needs a new fix and I don't have the capacity right now to look into that. Sorry! Hopefully playing in fullscreen or with the itch app is better :)


cool. I'll check it out!


Me and my partner just played this for a while and it's really cool!! We especially liked the sound design :)


Done. I f you'd like to edit the description just say so and I'll make the changes.


awesome game. I'd you'd like I'd love to embed it on my site ozogames dot com. Thank you


We're working on a follow up version of the game called Jetstream, so unfortunately we won't have the time to support that. If you're able to embed the game without our help, and link back to the game, that'll be ok for now. Thanks!

Great. I think this version is great as it is. I'll add it to my puzzle,and indie category and homepage. I am going to embed the html5 version. I'll do it tomorrow. I'll let you know when its done and send you the link :)


awesome, one suggestion i have is to make the swooshing sound when you move a bit quieter/unobtrusive, it gets kinda annoying after you play for a while


fun little mindless game to play in french class, thanks!


nice puzzle game, i like it. have it on my android now.




My favorite puzzle game ever. I love this!!




I really like the simplicity of the game.. The graphics, the sounds, and the times.. :P

And congrats with the Ludum Dare rankings! OUO Awesome job!

The visuals are both appealing and effective, and the sound design is cute too! What I love about the gameplay is that it's easily picked up and learned but gets even more layered and challenging as new elements are added--it's deceptively simple, in the best possible way. Well done!


Smooth, simple, very nice!


Great game! A lot of fun, cool colors and great way to increase difficulty and complexity.

I played 30 levels and then Chrome unloaded the tab, and now I'm sad that I have to do 90 clicks and wait for 30 level start animations to get back to where I was. Can you just make a full level select grid?

Fortunately one already exists! Just select the menu in the top left and then the "leave" option. Sorry it wasn't obvious! :)

Also, you might find that the arrow keys are easier to use than dragging on desktop/laptop ;)


Hi! :D Congrats with your shared 8th place on the Ludum Dare, that's a real achievement. You made a game that's lots of fun and has really cute animation. I'm playing it now for myself but I put it in my top 10 Ludum Dare compilation, here's the video:

Watch the entire video to see previews of all 10 LD overall winners. Your game starts at 2:30. Thanks for making this, I hope you get a lot of coverage.


I really like this game, I think it has a lot of potential for mobile devices. You should get a port to iOS going too. The concept is really cool. Good job!


Thanks for the praise. I'd love to get an iOS port going too. I don't have an OS X device to compile on, but my colleague does and I believe the game works on iOS, the only issue is I'm not sure of a good distribution method for such an early stage. Any suggestions?

Hmmm... Maybe emu4ios? They host applications on their site, I'm pretty sure.


Thanks. We're looking into a general solution we can use. It probably won't be as easy as downloading an APK is for Android, but perhaps we can find something workable. At worst, I'm working on an HTML5 build, which should serve as an intermediate solution :)